Reverses or Undoes the last action performed on the spread report.

Minor actions (such as editing the text in a single cell) are NOT added to the undo buffer (meaning they cannot be undone).  The Statusbar Undo panel displays what action the UNDO command will reverse:

NOTE:  By default the last five (5) actions are stored in the undo buffer.  You can set the number of actions by double clicking on the Undo statusbar text.  Please be aware that setting the UNDO levels to a high value may cause performance issues as the UNDO buffer uses availiable memory.